polex肛上板polen.杆；柱；极点v.(用杆)支撑Pole.n.波兰人pole assignment problem杆分配问题pole zero approximation极零点逼近法pole of inaccessibility冰极pole bracket cantilever悬臂支架pole-type transformer杆装变压器pole repeater equipment杆上中继器设备pole-zero cancellation极零相消pole palcement technique极点放置技术pole of angular momentum角动量极,动量矩极pole-extension fixture电杆接高支架